w3 Qnt561 dq
jueelznew due in 2 hours minimum 60 words each with reference
chp6
1. What is the difference between one-sample t-test and 2-sample t-test? give some concrete examples
chp10
2.What are the common mistakes in survey design? How can we avoid those mistakes? Please give concrete examples.
chp10
3. It is a common practice for survey designers to include "neutral" in the scale. For example,
Do you agree that Obama care is a good policy? Rate this statement using a 5-point Likert scale:
1= strong disagree 2 = disagree 3=neutral 4=agree 5=strongly agree
•Peter, Paul, and Mary chose "3".
•Peter's position: "I am not sure. There are both pros and cons in this policy."
•Paul's position: "I already have my own insurance. I don't care."
•Mary's position: "I am a new immigrant. I don't know what Obamacare is. No idea!"
Are these "neutral" answers the same? If not, what number(s) should you assign to their positions? How would you rewrite the options (If necessary)?
- 9 years ago
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